1e41f4b71Sopenharmony_ci# Stack 2e41f4b71Sopenharmony_ci 3e41f4b71Sopenharmony_ci 4e41f4b71Sopenharmony_ci## 概述 5e41f4b71Sopenharmony_ci 6e41f4b71Sopenharmony_ci将一组tensor沿axis维度进行堆叠，堆叠前每个tensor的维数为n，则堆叠后output维数为n+1。 7e41f4b71Sopenharmony_ci 8e41f4b71Sopenharmony_ci该算子对应的[NodeType](_n_n_rt_v10.md#nodetype)为NODE_TYPE_STACK。 9e41f4b71Sopenharmony_ci 10e41f4b71Sopenharmony_ci输入： 11e41f4b71Sopenharmony_ci 12e41f4b71Sopenharmony_ci- 多个输入n维tensor，每个tensor要求shape相同且类型相同。 13e41f4b71Sopenharmony_ci 14e41f4b71Sopenharmony_ci输出： 15e41f4b71Sopenharmony_ci 16e41f4b71Sopenharmony_ci- output，将输入的张量沿axis维度堆叠的输出，n+1维tensor，数据类型与精度和输入相同。 17e41f4b71Sopenharmony_ci 18e41f4b71Sopenharmony_ci**起始版本：** 3.2 19e41f4b71Sopenharmony_ci 20e41f4b71Sopenharmony_ci**相关模块：**[NNRt](_n_n_rt_v10.md) 21e41f4b71Sopenharmony_ci 22e41f4b71Sopenharmony_ci 23e41f4b71Sopenharmony_ci## 汇总 24e41f4b71Sopenharmony_ci 25e41f4b71Sopenharmony_ci 26e41f4b71Sopenharmony_ci### Public 属性 27e41f4b71Sopenharmony_ci 28e41f4b71Sopenharmony_ci| 名称 | 描述 | 29e41f4b71Sopenharmony_ci| -------- | -------- | 30e41f4b71Sopenharmony_ci| long [axis](#axis) | 一个整数，指定tensor堆叠的维度。axis可以是负数，axis取值范围为[-(n+1)，(n+1))。 | 31e41f4b71Sopenharmony_ci 32e41f4b71Sopenharmony_ci 33e41f4b71Sopenharmony_ci## 类成员变量说明 34e41f4b71Sopenharmony_ci 35e41f4b71Sopenharmony_ci 36e41f4b71Sopenharmony_ci### axis 37e41f4b71Sopenharmony_ci 38e41f4b71Sopenharmony_ci``` 39e41f4b71Sopenharmony_cilong Stack::axis 40e41f4b71Sopenharmony_ci``` 41e41f4b71Sopenharmony_ci**描述** 42e41f4b71Sopenharmony_ci 43e41f4b71Sopenharmony_ci一个整数，指定tensor堆叠的维度。axis可以是负数，axis取值范围为[-(n+1)，(n+1))。 44